P-30.01, r. 2 - Petroleum Products Regulation

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8. Automotive diesel fuel containing low levels of biodiesel is an ultra-low sulphur diesel fuel containing between 1.0% and 5% by volume of biodiesel.
It must comply with Canadian General Standards Board standard CAN/CGSB-3.520-2011 - Automotive Diesel Fuel Containing Low Levels of Biodiesel (B1-B5).
Biodiesel means a blend of fatty acid monoalkyl esters produced from virgin or degraded or waste fry vegetable oils or animal fats, by transesterification with alcohol.
O.C. 581-2015, s. 8.